LTC5540 View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
'LTC5540' PDF : 16 Pages View PDF
LTC5540
Typical Application
450MHz Downconverting Mixer Application
T1
4:1
1nF
IFOUT
190MHz
VCCIF
3.3V
OR 5V
150nH
150nH
1µF
22pF
2k
IF+
IF –
3.3pF
IF
LTC5542
LO2
RF
400MHz
RF
TO 540MHz
6.8pF
LO
SHDN
BIAS
(0V/3.3V) SHDN
VCC2
VCC1
VCC 3.3V
1µF
22pF
VCC3
10pF
LO1
LOSEL
LO
590MHz
TO 730MHz
5540 TA02
Gain, NF and IIP3 vs RF Frequency
27
25
23 IIP3
21
19
TA = 25°C
fIF = 190MHz
fLO = fRF + fIF
17
15
13 NF
11
9
7 GC
5
400 420 440 460 480 500 520 540
RF INPUT FREQUENCY (MHz)
5541 TA02
Related Parts
PART NUMBER DESCRIPTION
Infrastructure
LT5527
400MHz to 3.7GHz, 5V Downconverting Mixer
LT5557
400MHz to 3.8GHz, 3.3V Downconverting Mixer
LTC6400-X
300MHz Low Distortion IF Amp/ADC Driver
LTC6401-X
140MHz Low Distortion IF Amp/ADC Driver
LTC6416
2GHz 16-Bit ADC Buffer
LTC6412
31dB Linear Analog VGA
LT5554
Ultralow Distort IF Digital VGA
LT5575
700MHz to 2.7GHz Direct Conversion I/Q
Demodulator
LT5578
400MHz to 2.7GHz Upconverting Mixer
LT5579
1.5GHz to 3.8GHz Upconverting Mixer
LTC5598
5MHz to 1.6GHz I/Q Modulator
RF Power Detectors
LT5534
50MHz to 3GHz Log RF Power Detector with
60dB Dynamic Range
LT5537
Wide Dynamic Range Log RF/IF Detector
LT5570
2.7GHz Mean-Squared Detector
COMMENTS
2.3dB Gain, 23.5dBm IIP3 and 12.5dB NF at 1900MHz, 5V/78mA Supply
2.9dB Gain, 24.7dBm IIP3 and 11.7dB NF at 1950MHz, 3.3V/82mA Supply
Fixed Gain of 8dB, 14dB, 20dB and 26dB; >36dBm OIP3 at 300MHz, Differential I/O
Fixed Gain of 8dB, 14dB, 20dB and 26dB; >40dBm OIP3 at 140MHz, Differential I/O
40.25dBm OIP3 to 300MHz, Programmable Fast Recovery Output Clamping
35dBm OIP3 at 240MHz, Continuous Gain Range –14dB to 17dB
48dBm OIP3 at 200MHz, 2dB to 18dB Gain Range, 0.125dB Gain Steps
Integrated Baluns, 28dBm IIP3, 13dBm P1dB, 0.03dB I/Q Amplitude Match,
0.4° Phase Match
27dBm OIP3 at 900MHz, 24.2dBm at 1.95GHz, Integrated RF Transformer
27.3dBm OIP3 at 2.14GHz, NF = 9.9dB, 3.3V Supply, Single-Ended LO and RF Ports
27.7dBm OIP3 at 140MHz, 22.9dBm at 900MHz, –161.2dBm/Hz Noise Floor
±1dB Output Variation over Temperature, 38ns Response Time, Log Linear
Response
Low Frequency to 1GHz, 83dB Log Linear Dynamic Range
±0.5dB Accuracy Over Temperature and >50dB Dynamic Range, 500ns Rise Time
LT5581
ADCs
LTC2208
LTC2262-14
LTC2242-12
6GHz Low Power RMS Detector
16-Bit, 130Msps ADC
14-Bit, 150Msps ADC Ultralow Power
12-Bit, 250Msps ADC
16 Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com
40dB Dynamic Range, ±1dB Accuracy Over Temperature, 1.5mA Supply Current
78dBFS Noise Floor, >83dB SFDR at 250MHz
72.8dB SNR, 88dB SFDR, 149mW Power Consumption
65.4dB SNR, 78dB SFDR, 740mW Power Consumption
5540f
LT 0410 • PRINTED IN USA
LINEAR TECHNOLOGY CORPORATION 2010
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